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    RESOURCE ALLOCATION FOR OFDMA WITH PRESERVATION OF WIRELESS LOCATION ACCURACY
    44.
    发明申请
    RESOURCE ALLOCATION FOR OFDMA WITH PRESERVATION OF WIRELESS LOCATION ACCURACY 审中-公开

    公开(公告)号：US20190215842A1

    公开(公告)日：2019-07-11

    申请号：US15865877

    申请日：2018-01-09

    Applicant: Cisco Technology, Inc.

    Inventor： Matt Silverman ,  Zhigang Gao ,  Oscar Bejarano Chavez ,  John Matthew Swartz ,  Santosh Ghanshyam Pandey

    IPC: H04W72/08 ,  H04B7/06 ,  H04W24/10 ,  H04W48/00

    Abstract: In one embodiment, a control device associated with a wireless network of a given location determines a reference quality of location readings between access points and client devices based on using substantially all of an available wireless communication bandwidth. The control device may then determine channel state information (CSI) between the client devices and access points for each orthogonal frequency-division multiple access (OFDMA) resource unit (RU), and selects a subset of RUs for allocation to each respective client device, based on the subset of RUs allocated to each respective client device i) surpassing a determined threshold of certain parameters of the CSI, while also ii) providing a minimum quality of a location reading based on using only the subset of RUs as compared to the reference quality of location readings. The control device may then allocate the selected subset of RUs to each respective client device for location-preserving OFDMA-signaling-based communication.

    Monitor radio assisted fine timing measurement for location applications
    45.
    发明授权
    Monitor radio assisted fine timing measurement for location applications 有权

    公开(公告)号：US10278155B1

    公开(公告)日：2019-04-30

    申请号：US15875043

    申请日：2018-01-19

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew A. Silverman ,  Zhigang Gao ,  John Matthew Swartz ,  Paul J. Stager

    IPC: H04W64/00 ,  H04W24/08

    Abstract: A plurality of first wireless devices monitor a ranging exchange of transmissions between a target wireless device and a second wireless device in order to record for each of the plurality of first wireless devices a time of reception of a first transmission that is sent from the second wireless device to the target wireless device and a time of reception of a second transmission that is sent from the target wireless device to the second wireless device. Using a timing error computed from the estimated location, a modification is made of the time of transmission of the first transmission to produce a first modified timestamp and of the time of reception of the second transmission to produce a second modified timestamp. A ranging measurement is computed of the target wireless device relative to the second wireless device using the first modified timestamp and the second modified timestamp.

    Noise Floor Driven Access Point Transmission Power
    47.
    发明申请
    Noise Floor Driven Access Point Transmission Power 有权
    噪声楼层驱动接入点传输功率

    公开(公告)号：US20160037459A1

    公开(公告)日：2016-02-04

    申请号：US14446993

    申请日：2014-07-30

    Applicant: Cisco Technology, Inc.

    Inventor： John Matthew Swartz ,  Joshua Suhr ,  Matthew A. Silverman ,  Paul J. Stager

    IPC: H04W52/24 ,  H04W52/22

    CPC classification number: H04W52/241 ,  H04W52/143 ,  H04W52/223 ,  H04W52/242 ,  H04W52/245 ,  H04W52/40 ,  H04W52/50 ,  H04W84/12

    Abstract: Apparatus and techniques are presented for estimating a noise floor experienced by a client device seeking to associate with an access point in a wireless network. A path loss between the client device and the access point may be estimated. A metric may then be generated, where the metric estimates a strength of a signal transmitted from the access point as received at the client device. The transmit power at the access point may then be adjusted, based on the metric.

    Abstract translation: 呈现装置和技术，用于估计寻求与无线网络中的接入点相关联的客户机设备经历的噪声基底。 可以估计客户端设备和接入点之间的路径损耗。 然后可以生成度量，其中度量估计在客户端设备处接收到的从接入点发送的信号的强度。 然后可以基于度量来调整接入点处的发射功率。

    Providing capacity optimized streaming data with forward error correction
    48.
    发明授权
    Providing capacity optimized streaming data with forward error correction 有权
    提供容量优化的流数据与前向纠错

    公开(公告)号：US08904262B2

    公开(公告)日：2014-12-02

    申请号：US13962145

    申请日：2013-08-08

    Applicant: Cisco Technology, Inc.

    Inventor： Neil Diener ,  John Matthew Swartz ,  William Robert Seed

    IPC: H03M13/00 ,  H03M13/05 ,  H04L1/00

    CPC classification number: H03M13/05 ,  H04L1/0017 ,  H04L1/0019 ,  H04L1/0041

    Abstract: In an example embodiment, there is described herein a methodology were the Forward Error Correction (FEC) data for a data stream is distributed into a plurality of FEC sub-streams. Subscribers to the data stream indicate which of the plurality of FEC sub-streams should be provided to them. The distribution of FEC sub-streams are limited to subscribed FEC sub-streams. FEC sub-streams with no subscribers are not forwarded beyond a distribution point such as an access point (AP).

    Abstract translation: 在示例实施例中，这里描述了一种方法，即将数据流的前向纠错（FEC）数据分发到多个FEC子流中。 数据流的订户指示应向其提供多个FEC子流中的哪一个。 FEC子流的分布限于订阅的FEC子流。 没有订户的FEC子流不被转发到诸如接入点（AP）的分发点之外。

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